Well a number of things can effect your dreams. Eating certain things before bed, stress, medications or herbal supplements, certain scents or doing something right before bed can effect your dreams. [I fell asleep while watching Polar Express last night, I dreamt I was on a train] there's a number of things can effect ones sleep cycle and therefore their dreams. Dreams can help you in your waking life, and your waking life can effect your dreams. While dream interpretation is a fun hobby, take the interpretation with a grain of salt. Sometimes a dream is just your imagination and not your subconscious warning you of danger.